耕升显卡问题

CPU酷睿6550（2.33超到2.49）
主板华擎4ore1333-eSATA2
内存2G单条
硬盘250G
显卡原来用得8500GT
换了块耕升9600GT红旗H版 电源由200W换到300w
驱动用得181.20_geforce_winxp_32bit_international_whql.exe
怎么老死机 不一定什么时候死
死机时鼠标有时能动 硬盘红灯闪
显卡温度也不高三十来度
再就是显示器上随机出现长方形的小块 刚启动WINDOWS欢迎界面时也会出现
显示器侧过没有坏点之类的
小块用鼠标左键一划就没了 刷新一下小块也消失

有时还会蓝屏不过就几次 蓝屏信息如下

A problem has been detected and windows has been shut down to prevent damage to your computer.

The problem seems to be caused by the following file: nv4_disp

If this is the first time you've seen this stop error screen,restart your computer.If this screen appears again,follow these steps:

The device driver got stuck in an infinite loop.This usually indicates problem with the device itself or with the device driver programming the hardware incorrectly.

Please check with your hardware device vendor for any driver updates.

Technical information:

**** STO

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